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Economics of Power Generation

Economics of Power Generation
Low power factor is usually not due to

Incandescent lamp
Induction motors
Arc lamps
Fluorescent tubes

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Economics of Power Generation
When the load factor of a power station increases, the units generated

Are increased
Remains same
None of the listed here
Are decreased

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Economics of Power Generation
When the power factor improved, the kW capacity of alternator is

Increased
None of the listed here
Unaffected
Decreased

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Economics of Power Generation
The most economical power factor for a consumer is generally

0.75 lagging
0.95 lagging
0.6 lagging
1

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Economics of Power Generation
If C is the capacitance per phase for delta connected capacitor bank, then capacitance per phase for star connected the capacitor bank is

√3C
3C
C/3
C/√3

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Economics of Power Generation
Load factor of a power station is generally

more than unity
equal to zero Diversity factor is always
less than unity
equal to unity

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